Each stage of an axial-compressor of a gas turbine can compress the atmospheric air a total of how many times?

Correct Answer: Option A — 1.2 times

Axial compressor stages are designed for efficient pressure rise, typically achieving a pressure ratio of approximately 1.2 per stage. This conservative ratio is necessary to prevent flow separation and compressor stall, ensuring stable aerodynamic performance across the entire operating range of the marine gas turbine engine.